It sure is, we do learn everyday.
Funny thing i submitted the answer 3 times in like 5 min!! I was in a huge hurry i was about to go out, my brother was waiting for me, we were going to watch Avengers, we were a little bit late, and then i saw puzzle, and im like easy one did not bother to read the text divided numbers into 2 groups, sent answer and as i sent it i realised that i have 35 on one 33 on other side, fixed it sent again and while i was closing that tab i saw "4 regions".. totally missing "each containing four numbers"..

they all add up to 17 :)